#!/bin/bash

TS_TOPDIR="${0%/*}/../.."
TS_DESC="umount"

. $TS_TOPDIR/functions.sh
ts_init "$*"

ts_check_test_command "$TS_CMD_FDISK"
ts_check_test_command "$TS_CMD_EJECT"
ts_check_test_command "$TS_CMD_KILL"
ts_check_test_command "$TS_CMD_MOUNT"

ts_skip_nonroot
ts_check_prog "mkfs.ext2"

# scsi_debug could not eject for kernel >=3.19 and <4.4
if x=$(echo "3.19" && uname -r && echo "4.4") \
   && test "$x" = "$(echo "$x" | sort --version-sort)"
then
	ts_skip "3.19 <= $(uname -sr) < 4.4"
fi

#
# Note that eject --force is required because scsi_debug is
# not removable device.
#

# set global variable TS_DEVICE
function init_device {
	ts_scsi_debug_init dev_size_mb=100
}

function init_partitions {
	local dev=$1

	ts_log "Create partitions"
	$TS_CMD_FDISK --noauto-pt $dev >> /dev/null 2>&1 <<EOF
o
n
p
1

+50M
n
p
2


p
w
EOF
	udevadm settle
	mkfs.ext2 -q ${dev}1
	mkfs.ext2 -q ${dev}2
	udevadm settle
}

function deinit_device {
	ts_scsi_debug_rmmod
}

if [ "$TS_USE_SYSTEM_COMMANDS" != "yes" ]; then
	# As the eject binary execl()s an uninstrumented /bin/umount binary, we need
	# to explicitly $LD_PRELOAD the ASan's runtime DSO, otherwise ASan will complain.
	# Since all three utilities used by this test (eject, fdisk, mount) are just
	# libtool wrappers, let's check the kill binary instead, which should have
	# the needed DSO information.
	ASAN_RT_PATH="$(ts_get_asan_rt_path "$TS_CMD_KILL")"
	[ -n "$ASAN_RT_PATH" ] && export LD_PRELOAD="$ASAN_RT_PATH:$LD_PRELOAD"
fi

ts_init_subtest "by-disk"
init_device
$TS_CMD_EJECT --force $TS_DEVICE && ts_log "Success"
deinit_device
ts_finalize_subtest


ts_init_subtest "by-disk-mounted"
init_device
mkfs.ext2 -q -F $TS_DEVICE
udevadm settle
mkdir -p $TS_MOUNTPOINT
$TS_CMD_MOUNT $TS_DEVICE $TS_MOUNTPOINT
$TS_CMD_EJECT --force $TS_DEVICE && ts_log "Success"
deinit_device
ts_finalize_subtest


ts_init_subtest "by-disk-mounted-partition"
init_device
init_partitions $TS_DEVICE
mkdir -p ${TS_MOUNTPOINT}1
mkdir -p ${TS_MOUNTPOINT}2
$TS_CMD_MOUNT ${TS_DEVICE}1 ${TS_MOUNTPOINT}1
$TS_CMD_MOUNT ${TS_DEVICE}2 ${TS_MOUNTPOINT}2
$TS_CMD_EJECT --force $TS_DEVICE && ts_log "Success"
deinit_device
ts_finalize_subtest


ts_init_subtest "by-partition"
init_device
init_partitions $TS_DEVICE
$TS_CMD_EJECT --force ${TS_DEVICE}1 && ts_log "Success"
deinit_device
ts_finalize_subtest


ts_init_subtest "by-partition-mounted"
init_device
init_partitions $TS_DEVICE
mkdir -p ${TS_MOUNTPOINT}1
mkdir -p ${TS_MOUNTPOINT}2
$TS_CMD_MOUNT ${TS_DEVICE}1 ${TS_MOUNTPOINT}1
$TS_CMD_MOUNT ${TS_DEVICE}2 ${TS_MOUNTPOINT}2
$TS_CMD_EJECT --force ${TS_DEVICE}1 && ts_log "Success"
deinit_device
ts_finalize_subtest


ts_finalize
